/Engine/Source/Runtime/Engine/Public/Subsystems/WorldSubsystem.h
UTickableWorldSubsystemBase class for auto instanced and initialized systems that share the lifetime of aUWorldand are ticking along with it
class UTickableWorldSubsystem : public [UWorldSubsystem](API\Runtime\Engine\Subsystems\UWorldSubsystem), public [FTickableGameObject](API\Runtime\Engine\FTickableGameObject)